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    Please use this identifier to cite or link to this item: https://ir.fy.edu.tw:8080/ir/handle/987654321/6981

    Title: Chemical constituents in particulate emissions from an integrated iron and steel facility
    Authors: Tsai,Jiun-Horng;Lin,Kuo-Hsiung;Chen,Chih-Yu;Ding,Jian-Yuan;Choa,Ching-Guan;Chiang, Hung-Lung
    Contributors: 輔英科技大學 環境工程與科學系
    Keywords: Integrated iron/steel plant;Airborne particle;Element species;Water-soluble ions;Polyaromatic hydrocarbons;Organic carbon;Elemental carbon
    Date: 2007-08-17
    Issue Date: 2010-10-15 10:55:44 (UTC+8)
    Abstract: Particle emissions from four integrated iron and steel plant processes, i.e., coke making, sintering, cold forming, and hot forming, were investigated in this study. Particle compositions of 21 element species, 11 ionic species, elemental carbon (EC), organic carbon (OC) and 16 polyaromatic hydrocarbons (PAHs) were analyzed to create “fingerprints” of the particles emitted from various processes in an integrated iron and steel plant. Results indicated that element compositions (0.11–0.42 g/g), water-soluble ions (0.34–0.52 g/g), elemental carbon (0.008–0.14 g/g), organic carbon (0.02–0.06 g/g) and PAHs (0.52–6.2 mg/g) contributed to the particle mass. In general, sulfur had a higher mass contribution than the other elements, which resulted from the use of coal, flux, heavy oil, and many recycled materials in the iron and steel plant. The particle mass contribution of potassium and chlorine in the sinter plant was higher than in other processes; this may be attributed to the lower boiling point and volatility of potassium. In addition, many recycled materials were fed into the sinter plant, causing a high concentration of potassium and chlorine in the particle phase. Eight PAH compounds were analyzed in the four processes. The carcinogenic compound Benzo(a)pyrene (BaP) was detectable only in the sintering process.
    Relation: Journal of Hazardous Materials,Volume 147, Issues 1-2,Pages 111-119
    Appears in Collections:[環境工程與科學系] 期刊論文

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